William e



. (NoModeL) W-. E. HAXTUN! BOILER.- Q No. 381,240. I PatentedApr.17',1888

. UNITED STATES PATENT OFF-ion;

"WILLIAM E. HAXTUN, or KEWANEE, ILLINOIS, ASSIGNOR To THE .HAXTUN STEAM HEATER COMPANY," OF SAME PLACE.

BOlLER.Q*

, SPECIFICATION forming part of Letters Patent No.381,240, dated A ril 17, 1888. A l Application filed July 19, 1887. Serial/No. 244,725. (No model.) I

To all whom, it may concern.- v

- Be it known that I, WILLIAM E. HAXTUN, residing at Kewanee, in the countyof Henry and State of Illinois, a citizen of the United States, have invented a-new and .useful Im provement in Boilers for- Heatingby Steam or Hot Water, of which the following is a specification, reference .being had to the accompanying drawings, in which Figure 1 is a vertical section at line so of Fig. 2, the entire boiler being shown-in Fig. 1 and a portion being cut away in Fig. 2. Fig. 2 is a horizontal section 1 at line y of Fig. 1, a part of the boiler being removed in this figure. Fig. 3 is a detail, being a vertical section at line z of Fig. 2.

' My improved boiler is primarilyidesigned to be used in heating railway-cars, and, as

shown in the drawings, is adapted to be placed beneath the car.

The objects of my invention are to so. constructthe boiler that the products of combustion will be taken out through the opening through which the coal is fed to .the fire-chamber, and thence around the boiler through a flue-space, and also to provide such flue-space with water-tubes, which I accomplish as illustrated in the drawings and hereinafter described. Those things which I claim as new will be set forth in the claims.

In the drawings, Ais a sheet of metal formed "into a cylinder.

B is a second sheet of metal formed into a cylinder somewhat larger than the cylinderA.

O is a metal ring located between the two cylinders A B and at the bottom thereof, to which ring these two cylindcrsare riveted.

. D is a flanged head,*which is riveted-to the upper end of thecylinder A.

flange-a is riveted to the upper end of the cylinder B. l H

F is another shortcylinder, to the lower end of which the flange b of the headE is riveted.

G is a flanged head riveted to the upper end of the short cylinder-F. This cylinder F and the head G together form'a steam-dome.

His a pipe for'the passage of steam from the steam-dome.

E is a head which has two flanges, ab. The

cylinder F. The space between the cylinders B and I formsa fire-space or flue space, J, and v sheet, B,-ofsuitable form. q a

horizontal tubes, the outer ends of K are which are closed, and their innerends are in and tapped in the cylinder B. Each of these tubes is, as shown, provided with adiaph'rag'm, o, to aidtheoirculation. As shown,there are it is closed at the bottoni'by means of an iron sorted in suitable openings which are drilled four rows of these tubesybut'the number is not essential.v The a space between the cylinders A B is a water-space, from which the Wa ter flows into the tubes Around and over the boiler,.as described, H

is placed a casing-L, which may be -made of galvanized iron, andmaybe about two and a forming an air-space to protect the boiler from the cold and prevent the radiation of heat. I k

byv an iron sheet or ring.

.halt' inches from the outer shell of theboiler,

The bottom of thisair-spa'ce is closed 1 M is a circular? grate of any suitablefcon-f struction. Theseveral cylinders A B I and the casing L are each provided with anopen-r.

ing to receive a-chute, N, through which coalis introduced to the firechamber." Thisch'ute V is made of heavy castiron, riveted to the boiler proper and to the cylinder I, and also to the iron casing" L. This'chute is closed on one side, asindicated at (2.; On the other side there is an opening, 6, through which the products of combustion can pass from thefire-pot int the flue-space J, I; .1 I

8 I ,O is a door at the outer, end of the chute N. P .isan, outlet-passage for the smoke, which may be carried up, (directly through the cart) as indicated in Fig. '3, or it might be carried 5 first horizontally along under the carto a point near the end thereof and then up through the car, orit may be carried up outside thelcar.

As. represented, the boiler is only: about twenty-four inches in height and maybe suspended undera railroad-car. ,The height of. the boiler may, of course, vary somewhat, ac- 1 cording to the space beneath the car which canbe occupied by theboiler,

The operation is as follows: Fuel can be fed to the fire-pot through the chute N when the door 0 is open. When the door is closed, the smoke and products of combustion will pass out through the same opening through which the coal was fed to the fire-pot, and will pass through the opening 0 in the side of the chute into the flue-space J, and will pass through the flue-space around to the opposite side of V the boiler and out through the smoke-passage P, as indicated by arrows. A large amount of heating-surface is provided, the water being in the space between the cylinders A 13, also passing into the tubes K, and also extending over the heads D and E. p

I have shown in thedrawings a pipe, H, for the conveyance of steam from the boiler into the car. I

The boiler is well adapted to be used as a hot-water heater instead of steam-heater, if desired, the circulating water-pipes being arranged in any well-known manner.

Boilers containing my invention may be used for purposes other than for heating railway-cars.

What I claim as new, and desire to secure by Letters Patent, is

1.' In aboiler, the combination of a fire-pot, a water-space outside of such fire-pot, a smokeflue around such water-space, a chute or passage through which fuel can be fed to the fire: pot, which chute passes through the waterspace around the fire-pot and is entirely closed on the bottom, top, and one side, but has an opening in one'side which communicates with the smoke-flue which surrounds the waterspace, substantially as and for the purposes specified.

2. In aboiler, the combination of a fire-pot, I

a water-space outside of such fire-pot, a smokeflue around such water-space,water-tubes commu nicating with such water-space and extending into the smoke-flue, a chute or passage through which fuel can be fed to the fire-pot, and a passage through one wall of the chute and communicatingwith the smoke-flue around the water-space, substantially as and for the purposes specified.

WILLIAM E. HAX'IUN.

Witnesses:

A. M. HEWLETT, GRAHAM M. Foorn. 

